Thanks a lot.....
Let me check it.....
At first sight I found something like "/usr/bin" only in the script "SBFspot.php" (seems to be a link option.)
Maybe there is a difference between 1.6.8 and 1.6.8.2 !?

I will do my very best ....

EDIT: works now !!!!
changed all three SBFspot files in /var/www/html/123solar/scripts/protocols.
Once again thanks to user "pv81"